Stove-grate.



O. PISH & G. WIGHTMAN.

STOVE GRATE.

APPLIUATION FILED JUNE 15, 1909 956,064. Patented Apr. 26, 1910.

I 3 12 v Q I l I 15 15 11 k I jL-gng. 10 7 Q {v azarles F1312,

Charles MybZFW -w mmzw a ummu co, mom-mm wummmlm. at:

CHARLES FISH AND CHARLES WIGHTMAN, OF LITTLE ROCK, ARKANSAS.

STOVE-GRATE. 7

Specification of Letters Patent.

Application filed June 15, 1909.

Patented Apr. 26, 1910.

Serial No. 502,308.

To all whom it may concern:

Be it known that we, GiIARLns Fisri and CHARLES WIGI-ITMAN, citizens ofthe United States, residing at Little Rock, in the county of Pulaski andState of Arkansas, have invented certain new and useful Improvements inStove-Grates, of which the following is a specification, reference beinghat therein to the accompanying drawing.

Our invention relates to improvements in adjustable grates for stoves,furnaces and the like, and has for its object to provide a grate, whichcan be readily adjusted to raise or lower the fire. Further, theinvention, as is readily apparent, is particularly applicable to cookingstoves or ranges in which it is desirable at times to have only a lowfire, and, under these conditions, when it is desired to cook food ontop of the stove or expose it directly to the coals, all that it isnecessary to do is to raise the grate to bring the top of the fire tothe desired position.

Other objects and advantages of our invention will appear in the courseof the following specification.

In the accompanying drawings: Figure 1 is a longitudinal sectional viewthrough the fire box and ash pit end of a stove fitted with our improvedgrate. Fig. 2 is a cross sectional view through the fire box and ash pitend of the stove. Fig. 3 is a sectional view on the line rcw, Fig. 2,looking in the direc tion of the arrow. Fig. 4 is a fragmentary,perspective View of the grate and means em- 1 ployed to adjust it. Fig.5 is a front elevation of another portion of the means employed toadjust the grate and the means to lock it in adjusted positions.

Referring to the drawings, which represent the preferred embodiment ofour invention, 1 and 2 respectively designate the sides of the stove. Journaled in the sides 1 and 2, centrally of the fire-box 3 and ash-pit 1but preferably nearer the bottom than the top of the stove, is a shaft5, which is preferably square in cross section between its bearings.Fixed 0n the shaft 5 close to the inner faces of the sides 1 and 2 aretwo pinions 6 and 7 which are provided with conical teeth 8 for apurpose to be hereinafter explained. Movably held on the inner face ofeach of the sides 1 and 2 are vertically slidable standards 9 and 10which support the grate 20, hereinafter referred to, each of saidsupports being provided with a series of elongated apertures 11,preferably approximately elliptical in shape. The supports are adaptedto slide on vertical guides or bearings 12, and each support is providedwith a rabbeted or rightangular cut-out portion 13. The rabbetedportions 13 extend from the bottom nearly the entire length of thesupports, and are engaged by lu s 1 1 and 15 secured respectively to thesides *1 and 2. The lu 's are preferably located just opposite thepinions (5 and 7 so that the supports will be firmly held in mesh withthem but will be allowed to move freely when the pinions are rotated.

Suitably secured to the squared end 16 of the shaft 5, which extendsoutside the side 1, is an actuating handle 17. Pivoted contiguous to andslightly above the end 16 of the shaft 5 is a lug 18, which is adaptedto be turned to engage the shaft to hold it from rotating after theposition of the grate has been adjusted. The tops or upper ends of thesupports 9 and 10 are enlarged to form bearings or heads 19 upon whichis secured a preferably concave grate 20.

From the foregoing description, taken in connection with theaccompanying drawings, it will be apparent that the grate 20 can beraised or lowered, as desired, by turning the handle 17 to the right orleft, and when the grate has been adjusted to the desired position, itcan be there secured by means of the lug 18. Vith the pinions 6 and 7,provided with conical teeth 8, and the supports 9 and 10 with apertures11, it will be evident that ashes, cinders and the like will not collectin the teeth of the pinions nor the apertures of the supports, and,hence, interfere with the proper adjustment of the grate.

WVhat we claim is 1. Tn a stove, a vertically movable grate, verticallymovable standards supporting said grate, each of said standards having avertical column of elongated openings, pinions having conical teethengaging said openings, and mechanism for'simultaneously operating saidpinions to raise and lower the grate.

2. A stove having a vertical rib on each of its opposite inner sides, avertically movable grate, vertically movable standards supporting saidgrate, each of said standards having a vertical groove engaging one ofsaid ribs, lugs on the side of the stove engaging said standards, eachof said standards having a vertical column of elongated openings, ashaft extending across the stove and mounted thereon, and having apinion adj acent to each end, each of said pinions having conical teethmeshing freely With said openings, and means for operating and lock ingsaid shaft.

In testimony whereof We hereiinto afliX our signatures in presence oftwo Witnesses.

CHARLES FISH. CHARLES \VIGHTMAN. Witnesses:

W. C. ADAMsoN, B. D. BRIGKHANE.

